Incandescent lamp.



Patented July 3|, I900.

E. H. PALMER.

INOANDESCENT LAMP.

(Application flied .nm. 5. 1900.

(No Model.)

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UNITED STATES PATENT V OFFI E.

EDWARD n. PALMER, or DETROIT, nroriroinu, Assieuort or ONE-HALF TO EFFIE A. WIGGIN, OF SAME PLACE.

lNoANoEscENrL/ma V smmememama part of Letters Patent a). 655,158, date July 31,1960. Application filed. January 5, 1900. Serial No. 427. (No model.)

T at whom it may concern:

Be it known that I, EDWARD H. PALMER, a

citizen of the United States, residing at Detroit, county of Wayne, State of Michigan,

1 have invented a certain new and useful Improvement in Incandescent Lamps; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to lamps, and has for its object an improved burner arranged. to produce gas and burn the gas, using the burning gas to render incandescent a mantle that is properly suspended above the burner.

In the drawings, Figure l is a sectional elevation of the burner. Fig. 2 is a cross-section of the mixing-chamber of the burner.- Fig. 3 is an elevation of an initial generatinglamp. Fig. 4 is a perspective of the wicktube of the generating-lamp.

The lamp receives its supply of hydrocarbon in the form of gasolene from a tank properly situated with respect to it and from which the gasolene is led through the pipe 2 to a generating-chamber 3. This generating-chamber is a vertical tubular chamber extending vertically along the mixing-chamber 4 and preferably inside the mixing-chamber, leaving the outside of the mixing-chamber cylindrical. The tube 3 is made by thickening the wall of the mixing-chamber and boring into the thickened part of the wall to form the tubular chamber. The thickened wall in which the generating-chamber is made extends below the lower shoulder 5 of the mixing-chamber and along the outside of the reduced or stem part 6 of the mixing-chamber, extending below a coupling-neck 7, where the feed-pipe 2 is coupled to the burner. Below the coupling 7 the bore of the tubularupright part decreases in size and extends with this diminished size through a hanging tube 8, that reaches through to a valve-chamber 9. From the valve-chamber 9 there is, an opening 10 to a second valve-chamber 11,in which there is a regulating-valve 12, actuated by a thumb-nut 13. The regulating-valve 12 is a needle-valve, the point of which engages in a seat 14, through which there is an opening,

the size of which is regulated by the needlevalve, and the opening directs the gas di- .rectly upward into chamber, and terminates near the top with an open mouth. The top of the generatingchamber 3is closed, and all gas generated in this chamber is compelled by its own pressure to travel downward through the small tube 16, by the valve 9, through the opening 10, through the regulating-valve chamber, and out through the opening 14: into the mixingchamber, Where it mingles with air that is drawn into the mixing-chamber through the holes 17. The mingled air and gas rises to the top of the mixing-chamber 4 and escapes from the mixing-chamber through a grating 18 in to the combustion-chamber under the mantle 19, and burning under the mantle heats the mantle to a white heat, producing what is known as an incandescent light. As is well known, the attempt to burn gasolene before it has been converted by heat into gas is attended with a production of consid-' erable smoke and soot, and to prevent this I convert the gasolene into gas before igniting it by means of an initial lighting device, which consists of a small alcohol-lamp 20. The alcohollamp has a burner, preferably fitted for a fiat wick that rises some distance above the neck of the lamp and is open at the top and along one side from near the neck of the lamp to the top of the burner. The edge of the flat wick reaches out through the opening along the side of the fiat burner and a flame is produced that extends along the entire vertical length of the open part of the wick-tube, furnishing a large heating-flame from a comparatively-small tube, This lamp is preferably made with a hook h, by means of which it is hung to the feed-pipe 2 in position to properly heat the generating-chamber 3, and as soon as this generating-cham- .ber hasbeen properly heated and gas begins to form in quantities sufiicient to burn and heat the mantle properly the generating-lamp is removed or can be removed and used for 5 other lamps or set aside.

1 111 mant e s s pp rtedeint he. ordinary.

way by a standard that rises from a ring which surrounds the mixing-chamber'and'furnishes" 'a rest for the protecting-chimney used with 1o burners of this class. a .7

After the flame has been properly started the generating-chamber 3 is heated by the flame in the combustion.- chamheig andtheh supply of gas is kept up so long as fuel is r 5 supplied and the valves are left open; The closing of either of the valves 9 or 13 instantly stops the combustion. The cylindrical chamher or tube 3, with its coaxial gas-tube 16,

forms an annulargenerating-chamber which no presents a large surface to the heat with a comparatively-small volume of gasolene.

.What I claim"i 's- V In an incandesoent lamp, in combination with a hollow mixing-chamber, a semicylindrical lug parallel to the axis of said chamber forming a part of the walls, and extending intgthe hollow thereof, said lug being hollowedout longitudinally and having its upper end closed and its lower end communieating with the hydrocarbon-reservoir, a ver- .tical tubulargas conductor approximately JOHN N. GOODRIOH, M. E. KOTT. r 

